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See detailIdentity of women in intercultural intimate relationships
Aleksic, Gabrijela UL; Natalie, Buedgen

in Aleksic, Gabrijela (Ed.) Experiencing Culture in Intercultural Intimate Relationships (2018)

Due to the increasing fluctuation between countries and the ongoing emergence of intercultural intimate relationships, the purpose of our study was to investigate how cultural transition affects the ... [more ▼]

Due to the increasing fluctuation between countries and the ongoing emergence of intercultural intimate relationships, the purpose of our study was to investigate how cultural transition affects the identity of women, who migrated out of love to settle permanently with their culturally diverse partner in Germany. Semi-structured interviews were conducted and analyzed by using qualitative content analysis. The sample consists of five women originally from Ireland, Peru, Poland and the United States, who all married a German and have lived in Germany between 8 and 50 years. The results show that cultural transition can affect identity in both positive and negative ways, which supports the perception of bicultural identity being at once both a blessing and a burden. [less ▲]

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See detailChild-rearing practices in intercultural marriages
Aleksic, Gabrijela UL; Natasha, Sousa Almeida

in Aleksic, Gabrijela (Ed.) Experiencing Culture in Intercultural Intimate Relationships (2018)

The purpose of this study is to investigate the influence of culture on child-rearing practices in intercultural marriage. Four participants, respectively two intercultural couples with at least one child ... [more ▼]

The purpose of this study is to investigate the influence of culture on child-rearing practices in intercultural marriage. Four participants, respectively two intercultural couples with at least one child in common participated in this study. One couple consisted of a Hungarian woman and Luxembourgish man. The other couple consisted of a Portuguese woman and her husband is Macedonian. Qualitative research methods were used for this study, more specifically semi-structured interviews. These were audio-taped and transcribed afterwards. Grounded theory was used for the analysis of this study. There were no significant results. Cultural influence in child-rearing practices in intercultural marriages could not be fully shown. There is a minimal positive influence but concerning languages In addition, it could not be fully confirmed that parents who come from countries who are considered to be more individualistic value autonomy in their children and parents who come from countries considered to be more collectivistic value more relatedness and conformity. More research is needed in order to obtain significant results. [less ▲]

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See detailA day in the digital lives of 0-3 year-olds
Gillen, Julia; Flewitt, Rosie; Aleksic, Gabrijela UL

in Journal of Early Childhood Literacy (2018)

The aim of this study is to identify the ways in which digital technologies permeate the everyday lives of children aged from birth to 3 in a number of European countries. Very few studies consider this ... [more ▼]

The aim of this study is to identify the ways in which digital technologies permeate the everyday lives of children aged from birth to 3 in a number of European countries. Very few studies consider this age group, yet there is increasing evidence that children are embedded in a digital environment from birth. [less ▲]

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See detailTransnational experiences, language competences and worldviews: contrasting language policies in two recently migrated Greek families in Luxembourg
Kirsch, Claudine UL; Gogonas, Nikos

in Multilingua (2018)

Against the backdrop of the ongoing crisis-led migration from Southern to Northwestern Europe, the present paper reports on a case study of two families who have recently migrated from Greece to ... [more ▼]

Against the backdrop of the ongoing crisis-led migration from Southern to Northwestern Europe, the present paper reports on a case study of two families who have recently migrated from Greece to Luxembourg. Luxembourg has a trilingual education system and many pupils of migrant background face difficulties on this account. Drawing on the framework of Family Language Policy, this paper explores the language ideologies and management strategies of two families as well as factors influencing their policies. This qualitative study was based on interviews, observations, and videos recorded by one of the families. The findings show that the families have contrasting language ideologies and management strategies that are informed by their differing transnational experiences, competences and worldviews. This study can contribute to a better understanding of the ways in which migrant families use their language resources in their new country. [less ▲]

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See detailCultural psychology of transgenerational family relations: Investigating ambivalences
Albert, Isabelle UL; Abbey, Emily; Valsiner, Jaan UL

Book published by IAP (2018)

The present volume deals with the experience of ambivalence in family relations - a well-known phenomenon that has inspired more and more research and theorizing in the last years but that is however ... [more ▼]

The present volume deals with the experience of ambivalence in family relations - a well-known phenomenon that has inspired more and more research and theorizing in the last years but that is however sometimes difficult to capture. Bringing together junior and senior researchers from different parts of the world, ideas on theory and research are elaborated following qualitative and quantitative approaches. This book thus contributes to theory-building as well as outlining research results and helping to develop measurement in interpersonal and intergenerational relations. [less ▲]

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See detailPaCER - A fully automated method for electrode trajectory and contact reconstruction in deep brain stimulation
Husch, Andreas Dominik UL; Petersen, Mikkel V.; Gemmar, Peter et al

in NeuroImage: Clinical (2018), 17

Abstract Deep brain stimulation (DBS) is a neurosurgical intervention where electrodes are permanently implanted into the brain in order to modulate pathologic neural activity. The post-operative ... [more ▼]

Abstract Deep brain stimulation (DBS) is a neurosurgical intervention where electrodes are permanently implanted into the brain in order to modulate pathologic neural activity. The post-operative reconstruction of the DBS electrodes is important for an efficient stimulation parameter tuning. A major limitation of existing approaches for electrode reconstruction from post-operative imaging that prevents the clinical routine use is that they are manual or semi-automatic, and thus both time-consuming and subjective. Moreover, the existing methods rely on a simplified model of a straight line electrode trajectory, rather than the more realistic curved trajectory. The main contribution of this paper is that for the first time we present a highly accurate and fully automated method for electrode reconstruction that considers curved trajectories. The robustness of our proposed method is demonstrated using a multi-center clinical dataset consisting of N=44 electrodes. In all cases the electrode trajectories were successfully identified and reconstructed. In addition, the accuracy is demonstrated quantitatively using a high-accuracy phantom with known ground truth. In the phantom experiment, the method could detect individual electrode contacts with high accuracy and the trajectory reconstruction reached an error level below 100 μm (0.046 ± 0.025 mm). An implementation of the method is made publicly available such that it can directly be used by researchers or clinicians. This constitutes an important step towards future integration of lead reconstruction into standard clinical care. [less ▲]

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See detailASPIC-END: Structured Argumentation with Explanations and Natural Deduction
Dauphin, Jérémie UL; Cramer, Marcos UL

in Theory and Applications of Formal Argumentation (2018)

We propose ASPIC-END, an adaptation of the structured argumentation framework ASPIC+ which can incorporate explanations and natural deduction style arguments. We discuss an instantiation of ASPIC-END that ... [more ▼]

We propose ASPIC-END, an adaptation of the structured argumentation framework ASPIC+ which can incorporate explanations and natural deduction style arguments. We discuss an instantiation of ASPIC-END that models argumentation about explanations of semantic paradoxes (e.g. the Liar paradox), and we show that ASPIC-END satisfies rationality postulates akin to those satisfied by ASPIC+. [less ▲]

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See detailExtended Explanatory Argumentation Frameworks
Dauphin, Jérémie UL; Cramer, Marcos UL

in Theory and Applications of Formal Argumentation (2018)

Multiple extensions of Dung's argumentation frameworks (AFs) have been proposed in order to model features of argumentation that cannot be directly modeled in AFs. One technique that has already ... [more ▼]

Multiple extensions of Dung's argumentation frameworks (AFs) have been proposed in order to model features of argumentation that cannot be directly modeled in AFs. One technique that has already previously proven useful to study and combine such extensions is the meta-argumentation methodology involving the notion of a flattening. In order to faithfully model the interaction between explanation argumentation in scientific debates, Šešelja and Straßer have introduced Explanatory Argumentation Frameworks (EAFs). In this paper, we first prove that the flattening technique works as expected for recursive (higher-order) attacks. Then we apply this technique in order to combine EAFs with multiple other extensions that have been proposed to AFs, namely with recursive attacks, joint attacks and a support relation between arguments. This gives rise to Extended Explanatory Argumentation Frameworks (EEAFs). We illustrate the applicability of EEAFs by using them to model a piece of argumentation from a research-level philosophy book. [less ▲]

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See detailEarly reading of preschool children in Serbia: A longitudinal study
Aleksic, Gabrijela UL; Ferring, Dieter UL; Merrell, Christine et al

in Journal of Research in Reading (2018)

It is necessary to identify predictors of early reading, foundation of children’s school success. No study in Serbia has investigated this before. The purpose of our study was to identify predictors of ... [more ▼]

It is necessary to identify predictors of early reading, foundation of children’s school success. No study in Serbia has investigated this before. The purpose of our study was to identify predictors of early reading and explore correlates of preschool children in Serbia. Children (N=159) age 5-8 were assessed three times over 14 months by an adaptive test, Performance Indicators in Primary School (PIPS). Reading at Time 3 was predicted by gender and mathematics and not by vocabulary and phonological awareness from Time 1. Older children performed higher than younger in vocabulary, phonological awareness, reading and mathematics at Time 1 only. Girls scored higher than boys and Romani scored the lowest in reading at all times. This study offers important information on early reading of an under researched population. Attrition of the sample limits the findings. [less ▲]

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See detailLa compétitivité de l'hôpital public : le cas français
Rassafi-Guibal, Hicham UL

in Chiocchetti, Paolo; Allemand, Frederic (Eds.) Compétitivité et solidarité dans l'Union européenne (2018)

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See detailThe Informal Construction of Europe
Herzog, Mechthild UL; van Heumen, Lennaert

Book published by Routledge (2018)

Detailed reference viewed: 21 (1 UL)
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See detailA Security Analysis, and a Fix, of a Code-Corrupted Honeywords System
Genç, Ziya Alper UL; Lenzini, Gabriele UL; Ryan, Peter UL et al

in Proceedings of the 4th International Conference on Information Systems Security and Privacy (2018)

In 2013 Juels and Rivest introduced the Honeywords System, a password-based authentication system designed to detect when a password file has been stolen. A Honeywords System stores passwords together ... [more ▼]

In 2013 Juels and Rivest introduced the Honeywords System, a password-based authentication system designed to detect when a password file has been stolen. A Honeywords System stores passwords together with indistinguishable decoy words so when an intruder steals the file, retrieves the words, and tries to log-in, he does not know which one is the password. By guessing one from the decoy words, he may not be lucky and reveal the leak. Juels and Rivest left a problem open: how to make the system secure even when the intruder corrupted the login server’s code. In this paper we study and solve the problem. However, since “code corruption” is a powerful attack, we first define rigorously the threat and set a few assumptions under which the problem is still solvable, before showing meaningful attacks against the original Honeywords System. Then we elicit a fundamental security requirement, implementing which, we are able to restore the honeywords System’s security despite a corrupted login service. We verify the new protocol’s security formally, using ProVerif for this task. We also implement the protocol and test its performance. Finally, at the light of our findings, we discuss whether it is still worth using a fixed honeywords-based system against such a powerful threat, or whether it is better, in order to be resilient against code corruption attacks, to design afresh a completely different password-based authentication solution. [less ▲]

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See detailEmotionally laden impulsivity interacts with affect in predicting addictive use of online sexual activity in men
Wéry, Aline; Deleuze, Jory; Canale, Natale et al

in Comprehensive Psychiatry (2018), 80

The interest in studying addictive use of online sexual activities (OSA) has grown sharply over the last decade. Despite the burgeoning number of studies conceptualizing the excessive use of OSA as an ... [more ▼]

The interest in studying addictive use of online sexual activities (OSA) has grown sharply over the last decade. Despite the burgeoning number of studies conceptualizing the excessive use of OSA as an addictive disorder, few have tested its relations to impulsivity, which is known to constitute a hallmark of addictive behaviors. To address this missing gap in the literature, we tested the relationships between addictive OSA use, impulsivity traits, and affect among a convenience sample of men (N = 182; age, M = 29.17), building upon a theoretically driven model that distinguishes the various facets of impulsivity. Results showed that negative urgency (an impulsivity trait reflecting the tendency to act rashly in negative emotional states) and negative affect interact in predicting addictive OSA use. These results highlight the pivotal role played by negative urgency and negative affect in addictive OSA use, supporting the relevance of psychological interventions that focus on improving emotional regulation (e.g., to reduce negative affect and learn healthier coping strategies) to mitigate excessive use of OSA. [less ▲]

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See detailOntologically stepping-up: A model for refugee entrepreneurship
Heilbrunn, Sibylle; Iannone, Rosa Lisa UL

Scientific Conference (2017, December 01)

This paper is a first attempt at proposing an integrated conceptual model that would bridge this gap in our knowledge of refugee entrepreneurship. Such a model might then enable for the understanding of ... [more ▼]

This paper is a first attempt at proposing an integrated conceptual model that would bridge this gap in our knowledge of refugee entrepreneurship. Such a model might then enable for the understanding of the super-diverse entrepreneurial strategies being employed by super-diverse refugees, within complex and super-diverse socio-economic and political settings – thereby, ontologically stepping-up our theoretical approaches and empirical insights into the phenomenon. [less ▲]

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See detailA Framework for Optimizing Multi-cell NOMA: Delivering Demand with Less Resource
You, Lei; Lei, Lei UL; Yuan, Di et al

in 2017 IEEE Global Communications Conference (GLOBECOM) (2017, December)

Non-orthogonal multiple access (NOMA) allows multiple users to simultaneously access the same time-frequency resource by using superposition coding and successive interference cancellation (SIC). Thus far ... [more ▼]

Non-orthogonal multiple access (NOMA) allows multiple users to simultaneously access the same time-frequency resource by using superposition coding and successive interference cancellation (SIC). Thus far, most papers on NOMA have focused on performance gain for one or sometimes two base stations. In this paper, we study multi-cell NOMA and provide a general framework for user clustering and power allocation, taking into account inter-cell interference, for optimizing resource allocation of NOMA in multi-cell networks of arbitrary topology. We provide a series of theoretical analysis, to algorithmically enable optimization approaches. The resulting algorithmic notion is very general. Namely, we prove that for any performance metric that monotonically increases in the cells’ resource consumption, we have convergence guarantee for global optimum. We apply the framework with its algorithmic concept to a multi-cell scenario to demonstrate the gain of NOMA in achieving significantly higher efficiency. [less ▲]

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See detailOn a geometric framework for Lagrangian supermechanics
Bruce, Andrew UL; Grabowska, Katarzyna; Moreno, Giovanni

in Journal of Geometric Mechanics (2017), 9(4), 411-437

We re--examine classical mechanics with both commuting and anticommuting degrees of freedom. We do this by defining the phase dynamics of a general Lagrangian system as an implicit differential equation ... [more ▼]

We re--examine classical mechanics with both commuting and anticommuting degrees of freedom. We do this by defining the phase dynamics of a general Lagrangian system as an implicit differential equation in the spirit of Tulczyjew. Rather than parametrising our basic degrees of freedom by a specified Grassmann algebra, we use arbitrary supermanifolds by following the categorical approach to supermanifolds. [less ▲]

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See detailLes 20 ans de la Cour Constitutionnelle: trop jeune pour mourir?
Gerkrath, Jörg UL

Book published by Pasicrisie luxembourgeoise (2017)

Detailed reference viewed: 27 (2 UL)
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See detailValue-Added Modelling in Primary and Secondary School: An Integrative Review of 674 Publications
Levy, Jessica UL; Keller, Ulrich UL; Brunner, Martin et al

Scientific Conference (2017, December)

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See detailModel-Driven Interaction Design for Social Robots
Cornelius, Gary Philippe UL; Hochgeschwender, Nico UL; Voos, Holger UL

in Cornelius, Gary Philippe; Hochgeschwender, Nico; Voos, Holger (Eds.) 4th International Workshop on Model-driven Robot Software Engineering, Marburg, Germany, 2017 (2017, December)

Robotic software development frameworks lack a possibility to present,validate and generate qualitative complex human robot interactions and robot de-velopers are mostly left with unclear informal project ... [more ▼]

Robotic software development frameworks lack a possibility to present,validate and generate qualitative complex human robot interactions and robot de-velopers are mostly left with unclear informal project specifications. The devel-opment of a human-robot interaction is a complex task and involves different ex-perts, for example, the need for human-robot interaction (HRI) specialists, whoknow about the psychological impact of the robot’s movements during the in-teraction in order to design the best possible user experience. In this paper, wepresent a new project that aims to provide exactly this. Focusing on the interac-tion flow and movements of a robot for human-robot interactions we aim to pro-vide a set of modelling languages for human-robot interaction which serves as acommon, more formal, discussion point between the different stakeholders. Thisis a new project and the main topics of this publication are the scenario descrip-tion, the analysis of the different stakeholders, our experience as robot applicationdevelopers for our partner, as well as the future work we plan to achieve. [less ▲]

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See detailPoster: Characterizing Driving Behaviors Through a Car Simulation Platform
Faye, Sébastien UL; Jafarnejad, Sasan UL; Costamagna, Juan UL et al

Poster (2017, November 27)

Human mobility has opened up to many themes in recent years. Human behavior and how a driver might react to certain situations, whether dangerous (e.g. an accident) or simply part of the evolution of new ... [more ▼]

Human mobility has opened up to many themes in recent years. Human behavior and how a driver might react to certain situations, whether dangerous (e.g. an accident) or simply part of the evolution of new technologies (e.g. autonomous driving), leaves many avenues to be explored. Although experiments have been deployed in real situations, it remains difficult to encounter the conditions that certain studies may require. For this reason, we have set up a driving simulator (comprising several modules) that is able to reproduce a realistic driving environment. Although, as the literature has already demonstrated, the conditions are often far from reality, simulation platforms are nonetheless capable of reproducing an incredibly large number of scenarios on the fly. In this poster, we explain how we conceived the simulator, as well as the system we developed for collecting metrics on both the driver and the simulation environment. In addition, we take advantage of this conference to publicly share a dataset consisting of 25 drivers performing the same road circuit on the "Project Cars" game. [less ▲]

Detailed reference viewed: 11 (0 UL)